Read the docs
TI-2023-15823 Aliases CVE-2023-32541GHSA-f332-grfr-h53c

Use after free in Hancom Office 2020

Priority HIGH 73CWE-416Published · Updated

Key facts

Attack vector
Network
Privileges required
None
User interaction
Required
Attack complexity
Low
Impact type
Code execution
Confidentiality · integrity · availability
High · High · High
Fix status
No fix listed

Attack profile from CVSS 3.1 · CNA. Fix status from CNA. Impact type from CWE-416 and the CVSS impact.

Summary

A use-after-free vulnerability exists in the footerr functionality of Hancom Office 2020 HWord 11.0.0.7520. A specially crafted .doc file can lead to a use-after-free. An attacker can trick a user into opening a malformed file to trigger this vulnerability.

Why it matters now

Exploitation Proof of concept CISA SSVC · not in CISA KEV
EPSS 0.00711 53rd percentileScored 2026-11-07
Public exploit Yes 1 exploit referenceTagged by NVD
Fix No fix listed No fixed version in the sources yet

SSVC decision points

CISA ADP · SSVC 2.0.3

Exploitation
Poc
Automatable
No
Technical impact
Total

The decision (Track, Attend, Act) also depends on your mission and well-being impact; see CISA's SSVC guide.

Affected products

VendorProductAffected versionsFixed inStatusSource
HancomHancom Office 2020HWord 11.0.0.7520—No fix listedCNA
  • Hancom Office 2020 VendorHancom Affected HWord 11.0.0.7520 Fixed in — No fix listed CNA

CPE configurations NVD · 1

CPEVersionsRoleVendor
cpe:2.3:a:hancom:hancom_office_2020:11.0.0.7520:*:*:*:*:*:*:*11.0.0.7520VulnerableHancom
  • cpe:2.3:a:hancom:hancom_office_2020:11.0.0.7520:*:*:*:*:*:*:* Versions 11.0.0.7520 Vulnerable ·Hancom

Remediation

No fixed version listed by the sources yet.

Timeline

  1. 2026-10-02 Threatist record created from CVE-2023-32541
  2. 2026-10-03 Alias added: GHSA-f332-grfr-h53c

References

Exploit 1

  • TI-2022-14904 A buffer underflow vulnerability exists in the way Hword of Hancom Office 2020 version… CVSS 3.1HIGH 7.8
  • TI-2021-05003 Heap-based buffer overflow in Hancom CVSS 3.1HIGH 7.8

Sources

This product uses the NVD API but is not endorsed or certified by the NVD. Sources and licences